Full-Wave Frequency Doublers using Diode and Transformer Circuit Diagram


Signal powered frequency doublers could be built from ordinary fast switching silicon diodes, special fast recovery junction diodes, schottky barrier diodes, varactors and even old-fashioned germanium diodes or vacuum tubes. The herein circuit diagram shows basic full-wave doubler configurations using ordinary transformers.

Frequency doubler circuit

The output transformer for the two diode doubler is single ended and is often replaced by a choke to ground when no impedance transformation is needed.

Further explanation on Full-Wave Frequency Doublers Circuit Diagram can be seen here in pdf (source: techlib.com).


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